 That September, CIDCO revised the original proposal to provide for a pair of parallel runways and submitted its feasibility report to the MoCA.AAI's sub-committee found the Navi Mumbai site technically and operationally feasible, and suggested that CIDCO carry out a detailed Techno Economic Feasibility Study (TEFS) of the project.The TEFS was submitted in 2001 following which the International Civil Aviation Organization (ICAO) conducted a simulation study which confirmed that simultaneous operation of two airports was possible with appropriate procedures in place.